Filesystems/Discussion/General/FDisk - Partitioning multiple filesystems of the same type/List of Posts
 
Forum Topic - FDisk - Partitioning multiple filesystems of the same type:
   
Update
Derek McIntyre(deleted)
03/19/2013 11:37 AM
post100005
FDisk - Partitioning multiple filesystems of the same type   
I'm finding a few discrepancies in QNX's documentation of partitioning and proper setup of multiple partitions of the 
same file system type, and was hoping someone could clarify for me.

1.) Primary t0177 and secondary t0178, or t0177 and t0177.1: which is correct?

Several parts of the documentation, as well as other sites, mention that t077/t0177 are the primary partitions while 
t078/t0178 are secondary and t079/t0179 are tertiary for qnx4 and qnx6 respectively; however, fdisk will allow you to 
create multiple t0179 partitions and will label them as /dev/hd0t179 and /dev/hd0t179.1.  Is the first correct? And if 
so, what is the reason for the second, or is it a mistake?

2.) Is there a limit of 4 partitions of the same file system on the same hard drive?

The documentation mentions this rule, but there are only 3 file system numbers listed.  This leads me to believe there 
is a 4th t080/t180 partition file system type: is that true?

Any information would be appreciated.

Thanks!
Mario Charest
03/19/2013 12:45 PM
post100009
RE: FDisk - Partitioning multiple filesystems of the same type   
With t07? are of the type QNX4 filesystem ( compatible with QNX6 ), and t17? are of type QNX6.  Check to doc about these
 filesystem to chose the one that best fits your need.

I think the 4 partitions limit is that of a standard primary boot loader, some fancier boot loader can extend that 
though.

I'm not sure if the QNX partition numbering is part of some standard.  In theory you could use any number it doesn't 
really matter. All that matter is one partition be set as boot partition and that is it. The naming of the partition is 
totally under your control.  However some tool like diskboot, used in the default startup sequence,  may have some 
specific requirement, don't know about that.

-----Message d'origine-----
De : Derek McIntyre [mailto:community-noreply@qnx.com] 
Envoyé : Tuesday, March 19, 2013 11:38 AM
À : general-filesystems
Objet : FDisk - Partitioning multiple filesystems of the same type

I'm finding a few discrepancies in QNX's documentation of partitioning and proper setup of multiple partitions of the 
same file system type, and was hoping someone could clarify for me.

1.) Primary t0177 and secondary t0178, or t0177 and t0177.1: which is correct?

Several parts of the documentation, as well as other sites, mention that t077/t0177 are the primary partitions while 
t078/t0178 are secondary and t079/t0179 are tertiary for qnx4 and qnx6 respectively; however, fdisk will allow you to 
create multiple t0179 partitions and will label them as /dev/hd0t179 and /dev/hd0t179.1.  Is the first correct? And if 
so, what is the reason for the second, or is it a mistake?

2.) Is there a limit of 4 partitions of the same file system on the same hard drive?

The documentation mentions this rule, but there are only 3 file system numbers listed.  This leads me to believe there 
is a 4th t080/t180 partition file system type: is that true?

Any information would be appreciated.

Thanks!



_______________________________________________

General
http://community.qnx.com/sf/go/post100005
To cancel your subscription to this discussion, please e-mail general-filesystems-unsubscribe@community.qnx.com
Derek McIntyre(deleted)
03/19/2013 12:50 PM
post100010
Re: RE: FDisk - Partitioning multiple filesystems of the same type   
If I use fdisk to create the partitions, the naming of them is not under my control.  Fdisk decides that the second 
partition is hd0t179.1, only if I make the first and second partitions t179; however, documentation says that t177 is 
primary and t178 is secondary for QNX6, so why would it allow me to have two t179s?

Return